Question

When will the conductivity of a Ge semiconductor decrease?choose the correct option from the given options.
(A) On adding donor impurity
(B) On adding acceptor impurity
(C) In making UV light incident
(D) On decreasing the temperature

Answer 1

Subsequently with increment in temperature, number of transporters in the semiconductor material increments and which prompts increment in conductivity of the material.

So we call the semi-conductor material have negative temperature coefficient i.e. with increment in temperature, opposition diminishes.

As the temperature expands, the atomic vibrations increment (thus diminishing the mean free way of particles).